he called for revenge against the united states. al-qaeda-linked group are now thought to be prime suspects in the killing. this comes shortly after another violent protest yesterday at the u.s. embassy in cairo, seemingly spontaneous and seemingly in response to a film made in the united states critical of the muslim prophet muhammad which got a lot of play throughout the region. in response to both of the attacks -- [ inaudible ] high alert, protest and reaction are heard. in various countries. bring to justice those responsible for what increasingly looks like again a well coordinated, deadly hit against american officials. >> dana: thank you, greg. earlier in morning, president obama spoke at the white house. >> the united states condemns this outrageous, shocking attack. we're working with the government of libya to secure the diplomats. increase the security and diplomatic posts throughout the world. make no mistake, we will work with the libyan government to bring to justice the killers who attacked our people. >> dana: secre